H II regions are usually found isolated from other stars or types of nebulae.
Correct Answer:
Verified
Q6: Dark nebulae are opaque to all wavelengths
Q7: We often find dark nebulae associated with
Q8: The dark dust clouds can be explored
Q9: Interstellar matter is distributed very evenly through
Q10: The 21 cm line of hydrogen is
Q12: Hydrogen is the major gas in the
Q13: Most molecules found in the giant molecular
Q14: The "Local Bubble" was probably created by
Q15: Emission nebulae appear red because they are
Q16: The H I regions are mapped by
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents